A recent study by researchers at the University of Padua and the Max Planck Institute for Demographic Research (MPIDR) has revealed that political differences between partners can significantly increase the risk of separation. Using long-term data from UK couples, the researchers found that those with different party preferences were substantially more likely to separate than those with the same political beliefs. The risk is particularly high when there are differences of opinion on Brexit.
Sometimes you don’t know. Or think it’s not important.
There’s this thing basically (you’ve probably heard about it), “I don’t like X people, but you’re good because you’re not like them”. X can be race, gender, any other things. When you are with that kinda person as long as they like you, you won’t feel how they are, they’ll treat you nice but it’s an exception not the rule. But when they don’t like you, they revert back to treating you like the X group. They’ll even go “I knew X would be like this” and all.
Now in many cases if they were vocal about it from the beginning you’d notice and might get away. But in many cases they won’t be vocal, or they’ll talk about it with some extreme examples which you might feel is justified and you know you’re not like that so it’s fine. And in those cases you yourself might hate those subgroup for ruining your reputation so you might even bond over that.